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United States Patent | 5,206,168 |
Boyle | * April 27, 1993 |
Dentrifying backing in a tablet form is periodically introduced into a home or commercial sewage treatment system, and specifically into an underground denitrification chamber. The system uses ground temperature to promote dentrifying bacteria activity to aid in sewage denitrification. The tablets are periodically dispensed with a power-driven dispenser that periodically drops a tablet below ground into the underground denitrification chamber.
Inventors: | Boyle; Gregory (113 Winesap Rd., Cherry Hill, NJ 08003) |
[*] Notice: | The portion of the term of this patent subsequent to February 9, 2010 has been disclaimed. |
Appl. No.: | 661968 |
Filed: | February 28, 1991 |
Current U.S. Class: | 435/262; 210/610; 210/611; 435/176; 435/262.5; 435/821 |
Intern'l Class: | C12N 011/14; H01R 004/48; C02F 003/00 |
Field of Search: | 210/610,611 435/176,821,262,262.5 |
3242055 | Mar., 1966 | DeLucia | 195/63. |
3709364 | Jan., 1973 | Savage | 210/610. |
4401569 | Aug., 1983 | Jhaveri et al. | 210/747. |
4576717 | Mar., 1986 | Collin et al. | 210/747. |
4634672 | Jan., 1987 | Baumgarten et al. | 435/180. |
4683064 | Jul., 1987 | Hullberg et al. | 210/747. |
4994276 | Feb., 1991 | Baichwal et al. | 424/440. |
Foreign Patent Documents | |||
60-14996 | Jan., 1985 | JP | 210/611. |
62-31639 | Jul., 1987 | JP | 210/610. |
0998391 | Feb., 1983 | SU | 210/611. |
Handbook of Biological Wastewater Treatment, Henry H. Benjes, Jr., Garland STPM Press, 1980, pp. 64-67. New Jersey Pinelands Comprehensive Management Plan, State of New Jersey, Adopted Nov. 21, 1980, pp. 51-53. Water Supply and Pollution Control, Viessman & Hammer, Harper & Row, 4th Edition, pp. 695-710. Microbiology, Pelczar & Reid, McGraw-Hill, pp. 182 & 702-704. Material Safety Data Sheet, Dec. 22, 1988, Sybron Chemicals, Inc. pp. 1-3, and 1. Nature and Properties of Soils, Nyle C. Brady, 8th Ed., Macmillan Publ., Chapters 10:12 and 10:13. U.S. Water News, Dec., 1989, vol. 6, No. 6, U.S. Water News, Inc. and Freshwater Foundation, "California orders 34,000 to abandon their septic tanks"; Large-scale sewer technology applied to household use. Water Engineering & Management, Nov. 1989, "Legislature addresses nitrate leaching". |
______________________________________ % by Weight ______________________________________ Disodium phosphate 5-10 Monosodium phosphate 2-5 Ammonium phosphate 2-5 Milk or Milk By-Products 80-90 ______________________________________